Spectro-photometer with arithmetic and control unit

Details Spectro-photometer with arithmetic and control unit Spectro-photometer with arithmetic and control unit

1980-02-26

1982-04-06

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrophotometer

356325, 364498, 364571, G01J 302, G01J 342

Patent

active

043233090

ABSTRACT:
A spectro-photometer having a calibration mechanism and a wavelength-range changeover mechanism is disclosed which is equipped with an operation panel for setting measuring frequencies and function modes, is controlled by a microcomputer to be subjected to the calibration and the changeover of wavelength range in a predetermined order, conducts a predetermined arithmetic operation on the basis of photometric values measured by the spectro-photometer, and further comprises two display elements mounted on the operation panel for performing the following display operation in accordance with a command from the microcomputer. That is, in the calibration period, a code showing that the spectro-photometer is now subjected to calibration, is displayed on one of the display elements, and the number of remaining check items is displayed on the other display element. While, in the wavelength-range changeover period, a code showing that the spectro-photometer is subjected to the wave-length changeover operation, is displayed on one display element, and a waiting time till the termination of wavelength-range changeover operation is displayed on the other display element.

REFERENCES:
patent: 4054380 (1977-10-01), Donohue et al.
Morgenthaler et al., American Laboratory, vol. 8, No. 8, Aug. 1976, pp. 37-45.

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